Folding knife



FIG. 1 is a perspective view of a folding knife showing our new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front elevational view thereof; and,

FIG. 7 is a rear elevational view, thereof.

The broken lines depict portions of the folding knife that are notclaimed.

The ornamental design for a folding knife, as shown and described.